Product Details : Series: amethyst seriesMain features: 1) Air beaker model. accessible chamber,especially architectonics for abode blazon with aggregate flue. 2) authentic design, gas saving,high efficiency, anatomy protected. acquire exhausted technology,high superior components, top adeptness combustion. 2) simple operation With 3 knobs for approach allotment and action option, accession 5 advertence lights for advertence alive action of boiler.3) assorted adaptation accessible ascribe capacity:17kW,20kW,24kW,27kW) can bout with adapted abode type.4) Can be affiliated with allowance thermostat or limited abettor which accouterment added action options.5) assorted anatomy available, adequate for adapted application condition. aqueduct calefaction exchanger (one calefaction exchanger) archetypal basin calefaction exchanger (two calefaction exchangers) model